feat: pass wizard to prepare payload function

README.md

@@ -39,7 +39,7 @@ class OrderWizardController extends WizardController
     // Prepare a payload. This payload will be available in $wizard->payload on each step. It will be saved
     // automatically after each step{number}Submit method. It is used to store each partial result until onFinish.
     // The simplest payload is an array. But you could use anything you want. It only needs to be serializable!
-    public function preparePayload(Request $request): array
+    public function preparePayload(Request $request, Wizard $wizard): array
     {
         return [];
     }

src/Wizard.php

@@ -12,8 +12,15 @@ class Wizard
 
     public int $maxSteps = 0;
 
-    public function __construct(public mixed $payload)
+    public mixed $payload = null;
+
+    public function __construct()
     {
         $this->id = (string) Str::uuid();
     }
+
+    public function setPayload(mixed $payload): self {
+        $this->payload = $payload;
+        return $this;
+    }
 }

src/WizardController.php

@@ -16,7 +16,9 @@ public function __invoke(Request $request, string $id = null, int $step = null):
     {
         // Prepare new Wizard
         if ($id === null) {
-            $wizard = new Wizard($this->preparePayload($request));
+            $wizard = new Wizard();
+            $payload = $this->preparePayload($request, $wizard);
+            $wizard->setPayload($payload);
             $this->repository->save($wizard);
             return $this->redirect($wizard);
         }
@@ -66,7 +68,7 @@ protected function handlePost(Request $request, Wizard $wizard, int $step): mixe
             $this->{$method}($request, $wizard);
         }
 
-        $wizard->step = $step+1;
+        $wizard->step = $step + 1;
 
         if (method_exists($this, 'step'.$wizard->step)) {
             $this->repository->save($wizard);
@@ -79,7 +81,7 @@ protected function handlePost(Request $request, Wizard $wizard, int $step): mixe
         }
     }
 
-    abstract function preparePayload(Request $request): mixed;
+    abstract function preparePayload(Request $request, Wizard $wizard): mixed;
 
     abstract function onFinish(Request $request, Wizard $wizard): mixed;
 }